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Taiwan Semiconductor Corporation HS2GALH
- Part No.:
- HS2GALH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
HS2GALH.pdf
- Description:
- 50NS, 2A, 400V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:13,980
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Product details
Overview
HS2GALH from Taiwan Semiconductor is a 2 A, 400 V glass-passivated surface-mount rectifier diode in Thin SMA package, featuring 0.99 V forward voltage at 2 A / 25°C, 50 ns reverse recovery time, and AEC-Q101 qualification for automotive use.
For engineers reviewing the HS2GALH datasheet, HS2GALH pinout, HS2GALH application, or HS2GALH equivalent, key selection criteria include peak reverse voltage (400 V), thermal resistance (RθJL = 17 °C/W), junction capacitance (25 pF), and moisture sensitivity level (MSL 1).
Technical Context
This high-efficiency fast recovery rectifier uses a single-die silicon construction with glass-passivated junction for enhanced reliability and stable operation across -55°C to +150°C junction temperature range. Its low-profile Thin SMA package supports automated placement and meets JESD201 Class 2 whisker resistance.
The device delivers fast switching (trr ≤ 50 ns) and low conduction loss (VF = 0.99 V max at 2 A, 25°C), making it suitable for high-frequency DC/DC converters where efficiency and thermal management are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage; defines safe blocking capability in snubber or freewheeling paths |
| IF | 2 A - Continuous forward current rating; determines steady-state power handling without derating below 125°C |
| trr | 50 ns - Reverse recovery time; enables operation up to ~3 MHz switching frequencies with minimal switching loss |
| VF @ 2A, 25°C | 0.99 V max - Forward voltage drop; directly impacts conduction loss (Pcond ≈ 1.98 W at full load) |
| CJ | 25 pF - Junction capacitance at 1 MHz / 4 V; influences high-frequency noise coupling and EMI behavior |
| RθJL | 17 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pad heat sinking for compact layouts |
| MSL | Level 1 - No floor life limitation; supports unlimited exposure to ambient conditions before reflow |
Pinout & Package
Package: Thin SMA - Low-profile surface-mount package with cathode band marking, matte tin-plated leads, UL 94V-0 molding compound, and 0.029 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of rectification path; requires adequate copper area for thermal dissipation |
| Cathode (marked by band) | Forward current exit / reverse voltage blocking terminal | Connected to output rail or switching node; polarity must be verified during layout and assembly |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass-passivated junction | Eliminates risk of junction corrosion and leakage drift under humid or contaminated environments |
| Fast recovery (50 ns) | Reduces switching losses in high-frequency DC/DC topologies such as flyback and active clamp forward converters |
| Low profile Thin SMA | Enables <1.0 mm board height in space-constrained modules like LED drivers and infotainment power supplies |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment |
Applications
| Automotive Power Supplies | Industrial DC/DC Converters |
|---|---|
Use Scenario: 12 V–48 V auxiliary power supply in ADAS camera modules and body control units. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter secondary side. Use Value: AEC-Q101 qualification ensures long-term reliability under automotive thermal cycling; 50 ns trr minimizes cross-conduction loss with MOSFETs. | Use Scenario: Isolated 24 V input to 5 V/3.3 V output in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Output rectifier in flyback transformer secondary winding. Use Value: 400 V VRRM provides margin against reflected voltage spikes; RθJL = 17 °C/W allows direct thermal coupling to PCB ground plane. |
| LED Driver Circuits | Snubber Networks |
Use Scenario: Constant-current LED driver for commercial lighting with 350 mA–700 mA output. IC Role / Device Role / Timing Role: Secondary-side rectifier in quasi-resonant (QR) flyback topology. Use Value: Low VF (0.99 V max) reduces conduction loss at high duty cycles; MSL Level 1 simplifies manufacturing flow. | Use Scenario: RC snubber across IGBT or MOSFET switches in motor drives. IC Role / Device Role / Timing Role: Fast-recovery clamping diode absorbing turn-off energy. Use Value: 50 ns trr ensures rapid voltage clamping without oscillation; 60 A IFSM withstands transient surge currents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R04 | Same 2 A / 400 V rating; TO-220AC package; higher VF (1.3 V typ at 2 A); RθJA = 65 °C/W | Requires heatsink for >1 A continuous operation; not surface-mount compatible | Choose STTH2R04 only when through-hole mounting and higher surge tolerance (IFSM = 80 A) are required |
| ON Semi MUR240 | 2 A / 400 V; SMA package; VF = 1.25 V max at 2 A; trr = 50 ns; RθJL = 20 °C/W | Slightly higher forward loss; same footprint but different marking and thermal performance | Select MUR240 if dual-sourcing is needed and minor VF increase is acceptable in thermally relaxed designs |
Compared with STTH2R04 and MUR240, HS2GALH offers superior thermal performance (RθJL = 17 °C/W), lower forward voltage (0.99 V max), and AEC-Q101 qualification-making it optimal for space-constrained, automotive-grade, or high-efficiency surface-mount rectification.
Availability
HS2GALH is available at Aetrix Electronics and suitable for automotive power supplies, industrial DC/DC converters, LED driver circuits, and snubber networks requiring stable component supply and long-term production continuity.
Supply support for HS2GALH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The HS2GALH belongs to TSC's HS2xALH fast recovery rectifier family, designed specifically for high-efficiency, surface-mount AC/DC and DC/DC conversion in automotive and industrial power systems.
FAQ
What is the maximum junction temperature rating for HS2GALH?
The HS2GALH has a maximum junction temperature (TJ) rating of +150°C, with operational capability down to -55°C. This wide range supports deployment in under-hood automotive environments and industrial enclosures without active cooling. Thermal design must respect RθJL = 17 °C/W and ensure lead temperature stays within limits per JEDEC standards. Derating curves in the HS2GALH datasheet confirm 2 A continuous current is sustainable up to 125°C ambient with proper PCB copper area.
Is HS2GALH suitable for automotive applications?
Yes, HS2GALH is AEC-Q101 qualified, meaning it has passed stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing-specifically validated for automotive power electronics. Its glass-passivated junction, MSL Level 1 rating, and -55°C to +150°C operating range make HS2GALH appropriate for engine control units, ADAS power rails, and body electronics where reliability under thermal and mechanical stress is mandatory.
What is the reverse recovery time (trr) of HS2GALH and how is it measured?
The HS2GALH has a reverse recovery time (trr) of ≤50 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the manufacturer's test methodology. This value reflects the diode's ability to transition rapidly from conduction to blocking state, minimizing switching losses in high-frequency converters. The 50 ns trr is confirmed across the full temperature range and supports operation in QR flyback and active clamp forward topologies up to ~3 MHz effective switching frequency.
Does HS2GALH have halogen-free and RoHS compliance documentation?
Yes, HS2GALH is certified halogen-free per IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU. These declarations are documented in Taiwan Semiconductor's material compliance reports and supported by test data from accredited third-party laboratories. The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin-plated per J-STD-002 solderability requirements-ensuring full regulatory alignment for export to EU, China, and other regulated markets.
What is the marking code for HS2GALH on the device body?
The marking code for HS2GALH is "HS2GAH", as specified in the ordering information table and marking diagram of the official datasheet. This 6-character laser marking appears adjacent to the cathode band on the Thin SMA package. The "x" in HS2xALH denotes voltage grade (D=200V, G=400V, J=600V, K=800V, M=1000V), so HS2GALH always marks as HS2GAH-enabling quick visual identification during inspection and assembly verification.
HS2GALH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-221AC, SMA Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 400 V
- Capacitance @ Vr, F:
- 25pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2GALH FAQ
1.How can I place an order for HS2GALH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2GALH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HS2GALH reliable?
The price and inventory of HS2GALH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2GALH is usually 5 days.
3.What payment methods are accepted for HS2GALH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2GALH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2GALH?
HS2GALH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2GALH order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HS2GALH?
For technical support, including HS2GALH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2GALH requirements.
6.How does Aetrix verify that HS2GALH is sourced from the original manufacturer or authorized distributors?
All HS2GALH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HS2GALH meets industry standards.
7.What is the process for return or replacement of HS2GALH?
All HS2GALH units undergo pre-shipment inspection (PSI). If there is an issue with HS2GALH, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HS2GALH part is unused and in its original packaging.
Return procedure for HS2GALH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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